On 11/14/2017 03:13 AM, T.Weyergraf wrote: > Hi > > I wonder, if live migration (back and forth) is possible on mixed Haswell (Xeon V3) and Broadwell (Xeon V4) installations. The only notable difference > between the two is apparently a working TSX implementation on V4, which got disabled on V3 due to bugs. The rest (VMCS-shadowing, posted interrupts) > should not apply to our environment, as we do not run nested-vmx nor device-passthrough on our Xen servers > > Now, I found no sane way to disable TSX on a given system but I cannot rule out, that some (Linux-)software, such as Postgres will use them > eventually. Also, I have a hard time trying to assess, if TSX can be disabled on V4 to enable seamless migration. > > Any hint would be greately appreciated. Have you looked at CPUID masking? I haven't tried this but someone wrote a handy calculator for it. https://github.com/twizted/xen_maskcalc _______________________________________________ CentOS-virt mailing list CentOS-virt@xxxxxxxxxx https://lists.centos.org/mailman/listinfo/centos-virt
